Nikko beta 20 pre sm
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Extracted text from Nikko beta 20 pre sm (Ocr-read)
Page 1
BETA 20
STEREO PRE-AMPLIFIER
TYPE AND VOLTAGE
W-TYPE: UL and CSA type 120v AC
E -TYPE: NKESTD type 220V AC
SERVICE MANUAL
CONTENTS
SPECIFICATIONS .................................................................. . 1
BLOCK DIAGRAM ................................................................. . 2
DISASSEMBLY .................................................................... . 3
ALIGNMENT ...................................................................... . 4
PARTS LOCATION ................................................................ 5
SCHEMATIC DIAGRAM ........................................................... 6 7
P.C. BOARD .................................................................... 8,9
PARTS LIST .................................................................. 10v 12
SEMICONDUCTOR DATA,
TRANSISTORS ............................................................... 13
FIELD EFFECT TRANSISTORS ................................................... 13
DIODES, LED'S ............................................................... 13
ZENER DIODES ............................................................. 13
INTEGRATED CIRCUITS ....................................................... 14